/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.8 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product55.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 07:40:50,598 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 07:40:50,603 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 07:40:50,651 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 07:40:50,651 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 07:40:50,663 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 07:40:50,665 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 07:40:50,669 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 07:40:50,672 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 07:40:50,675 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 07:40:50,676 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 07:40:50,677 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 07:40:50,678 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 07:40:50,681 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 07:40:50,684 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 07:40:50,686 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 07:40:50,688 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 07:40:50,689 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 07:40:50,690 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 07:40:50,701 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 07:40:50,703 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 07:40:50,704 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 07:40:50,706 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 07:40:50,707 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 07:40:50,710 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 07:40:50,710 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 07:40:50,710 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 07:40:50,714 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 07:40:50,715 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 07:40:50,716 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 07:40:50,716 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 07:40:50,717 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 07:40:50,718 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 07:40:50,719 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 07:40:50,721 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 07:40:50,721 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 07:40:50,722 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 07:40:50,722 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 07:40:50,722 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 07:40:50,723 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 07:40:50,725 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 07:40:50,726 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 07:40:50,775 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 07:40:50,776 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 07:40:50,778 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 07:40:50,778 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 07:40:50,778 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 07:40:50,779 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 07:40:50,779 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 07:40:50,779 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 07:40:50,780 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 07:40:50,780 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 07:40:50,781 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 07:40:50,781 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 07:40:50,781 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 07:40:50,782 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 07:40:50,782 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 07:40:50,782 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 07:40:50,783 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 07:40:50,783 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 07:40:50,783 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 07:40:50,783 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 07:40:50,783 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 07:40:50,784 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:40:50,784 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 07:40:50,784 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 07:40:50,784 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 07:40:50,784 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 07:40:50,785 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 07:40:50,785 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 07:40:50,785 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 07:40:50,785 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; [2020-09-25 07:40:51,249 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 07:40:51,271 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 07:40:51,275 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 07:40:51,277 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 07:40:51,278 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 07:40:51,279 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product55.cil.c [2020-09-25 07:40:51,361 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/114b6e1b9/998727e2c8a247cba1cd2041aec082d7/FLAGc332b5e56 [2020-09-25 07:40:51,969 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 07:40:51,970 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product55.cil.c [2020-09-25 07:40:51,987 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/114b6e1b9/998727e2c8a247cba1cd2041aec082d7/FLAGc332b5e56 [2020-09-25 07:40:52,244 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/114b6e1b9/998727e2c8a247cba1cd2041aec082d7 [2020-09-25 07:40:52,257 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 07:40:52,264 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 07:40:52,265 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 07:40:52,265 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 07:40:52,270 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 07:40:52,272 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:40:52" (1/1) ... [2020-09-25 07:40:52,276 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26e5903c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:40:52, skipping insertion in model container [2020-09-25 07:40:52,276 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:40:52" (1/1) ... [2020-09-25 07:40:52,285 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 07:40:52,336 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 07:40:52,881 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:40:52,895 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 07:40:52,986 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:40:53,024 INFO L208 MainTranslator]: Completed translation [2020-09-25 07:40:53,024 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:40:53 WrapperNode [2020-09-25 07:40:53,025 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 07:40:53,026 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 07:40:53,026 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 07:40:53,026 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 07:40:53,040 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:40:53" (1/1) ... [2020-09-25 07:40:53,040 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:40:53" (1/1) ... [2020-09-25 07:40:53,064 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:40:53" (1/1) ... [2020-09-25 07:40:53,064 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:40:53" (1/1) ... [2020-09-25 07:40:53,108 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:40:53" (1/1) ... [2020-09-25 07:40:53,120 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:40:53" (1/1) ... [2020-09-25 07:40:53,125 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:40:53" (1/1) ... [2020-09-25 07:40:53,134 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 07:40:53,135 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 07:40:53,135 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 07:40:53,135 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 07:40:53,136 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:40:53" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:40:53,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 07:40:53,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 07:40:53,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 07:40:53,238 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 07:40:53,238 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 07:40:53,238 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 07:40:53,239 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 07:40:53,240 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 07:40:53,240 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 07:40:53,240 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 07:40:53,240 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 07:40:53,241 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 07:40:53,241 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 07:40:53,241 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 07:40:53,241 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 07:40:53,242 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 07:40:53,242 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 07:40:53,243 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 07:40:53,243 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 07:40:53,243 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 07:40:53,243 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 07:40:53,244 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 07:40:53,244 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 07:40:53,244 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 07:40:53,244 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 07:40:53,245 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 07:40:53,245 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 07:40:53,246 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 07:40:53,246 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 07:40:53,246 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 07:40:53,246 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 07:40:53,246 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-25 07:40:53,246 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 07:40:53,246 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 07:40:53,247 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 07:40:53,247 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 07:40:53,247 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 07:40:53,247 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 07:40:53,247 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 07:40:53,249 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 07:40:53,249 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 07:40:53,250 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-25 07:40:53,250 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-25 07:40:53,250 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-25 07:40:53,250 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 07:40:53,252 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 07:40:53,252 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 07:40:53,252 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 07:40:53,252 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 07:40:53,253 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 07:40:53,253 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 07:40:53,253 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 07:40:53,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 07:40:53,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 07:40:53,254 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 07:40:53,254 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 07:40:53,254 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 07:40:53,254 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 07:40:53,254 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 07:40:53,254 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 07:40:53,255 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 07:40:53,255 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 07:40:53,255 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 07:40:53,255 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 07:40:53,256 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 07:40:53,256 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 07:40:53,256 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 07:40:53,256 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 07:40:53,256 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 07:40:53,257 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 07:40:53,257 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 07:40:53,259 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-25 07:40:53,259 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 07:40:53,259 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 07:40:53,259 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 07:40:53,259 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 07:40:53,260 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 07:40:53,260 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 07:40:53,260 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 07:40:53,260 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 07:40:53,260 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 07:40:53,260 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 07:40:53,261 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 07:40:53,261 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 07:40:53,261 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 07:40:53,261 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 07:40:53,261 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 07:40:53,261 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 07:40:53,262 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 07:40:53,262 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 07:40:53,262 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-25 07:40:53,262 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-25 07:40:53,262 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 07:40:53,262 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 07:40:53,263 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 07:40:53,263 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 07:40:53,263 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 07:40:53,263 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-25 07:40:53,263 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 07:40:53,263 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 07:40:53,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 07:40:53,264 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 07:40:54,679 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 07:40:54,679 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 07:40:54,695 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:40:54 BoogieIcfgContainer [2020-09-25 07:40:54,695 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 07:40:54,697 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 07:40:54,697 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 07:40:54,701 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 07:40:54,702 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 07:40:52" (1/3) ... [2020-09-25 07:40:54,704 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f9e2221 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:40:54, skipping insertion in model container [2020-09-25 07:40:54,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:40:53" (2/3) ... [2020-09-25 07:40:54,705 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f9e2221 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:40:54, skipping insertion in model container [2020-09-25 07:40:54,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:40:54" (3/3) ... [2020-09-25 07:40:54,707 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product55.cil.c [2020-09-25 07:40:54,720 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 07:40:54,734 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 07:40:54,756 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 07:40:54,789 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 07:40:54,789 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 07:40:54,789 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 07:40:54,789 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 07:40:54,789 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 07:40:54,789 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 07:40:54,790 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 07:40:54,790 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 07:40:54,821 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states. [2020-09-25 07:40:54,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-25 07:40:54,842 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:40:54,844 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:40:54,844 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:40:54,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:40:54,852 INFO L82 PathProgramCache]: Analyzing trace with hash 1837457757, now seen corresponding path program 1 times [2020-09-25 07:40:54,863 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:40:54,864 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [634154050] [2020-09-25 07:40:54,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:40:55,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:55,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:55,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:57,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:57,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:00,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:00,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:00,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-25 07:41:00,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:41:00,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5037 [2020-09-25 07:41:00,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:00,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:00,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:00,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-25 07:41:00,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:00,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 07:41:00,700 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:41:00,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:41:00,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:00,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:00,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:00,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:41:00,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:00,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-09-25 07:41:00,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:00,853 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:00,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:00,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:00,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:00,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:00,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 07:41:00,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:00,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:00,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:00,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:41:00,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:00,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:41:00,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:00,926 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:00,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:00,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:00,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:00,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:00,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 07:41:00,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:00,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:00,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:00,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:41:00,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:00,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:41:00,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:00,933 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:00,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:00,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:00,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:00,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:00,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 07:41:00,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:00,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:00,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:00,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:41:00,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:00,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:41:00,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:00,943 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:00,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:00,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:00,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:00,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:00,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 07:41:00,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:00,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:00,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:00,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:41:00,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:00,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:41:00,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:00,951 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:00,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:00,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:00,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:00,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:00,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 07:41:00,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:00,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:00,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:00,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:41:00,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:00,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:41:00,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:00,967 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:00,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:00,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:00,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:00,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:00,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 07:41:00,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:00,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:00,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:00,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 07:41:00,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:00,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:41:00,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:00,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:00,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:00,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 07:41:00,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:00,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:00,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:41:00,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:00,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:00,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:00,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:41:00,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:00,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:41:00,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:00,987 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:00,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:00,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:00,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:00,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:00,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-25 07:41:00,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:00,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:00,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:00,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:41:00,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:00,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:41:00,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:00,996 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:00,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:00,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:41:00,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:00,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:00,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 07:41:01,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:01,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:01,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:01,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:41:01,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:01,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:41:01,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:01,005 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:01,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:01,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:41:01,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:01,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:01,040 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 07:41:01,041 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [634154050] [2020-09-25 07:41:01,043 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:41:01,044 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 07:41:01,045 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126435702] [2020-09-25 07:41:01,052 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 07:41:01,053 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:41:01,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 07:41:01,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:41:01,075 INFO L87 Difference]: Start difference. First operand 356 states. Second operand 4 states. [2020-09-25 07:41:02,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:41:02,689 INFO L93 Difference]: Finished difference Result 574 states and 675 transitions. [2020-09-25 07:41:02,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 07:41:02,692 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-09-25 07:41:02,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:41:02,728 INFO L225 Difference]: With dead ends: 574 [2020-09-25 07:41:02,729 INFO L226 Difference]: Without dead ends: 354 [2020-09-25 07:41:02,739 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:41:02,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2020-09-25 07:41:02,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 305. [2020-09-25 07:41:02,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 305 states. [2020-09-25 07:41:02,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 335 transitions. [2020-09-25 07:41:02,879 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 335 transitions. Word has length 160 [2020-09-25 07:41:02,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:41:02,880 INFO L479 AbstractCegarLoop]: Abstraction has 305 states and 335 transitions. [2020-09-25 07:41:02,880 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 07:41:02,880 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 335 transitions. [2020-09-25 07:41:02,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 07:41:02,888 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:41:02,889 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:41:02,889 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 07:41:02,889 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:41:02,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:41:02,890 INFO L82 PathProgramCache]: Analyzing trace with hash -1789816380, now seen corresponding path program 1 times [2020-09-25 07:41:02,890 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:41:02,890 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1062595151] [2020-09-25 07:41:02,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:41:02,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:03,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:03,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:04,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:05,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:06,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:07,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:07,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-09-25 07:41:07,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:41:07,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 07:41:07,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:07,961 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:07,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:41:07,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 07:41:07,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 07:41:07,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:08,287 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:41:08,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:41:08,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:08,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:08,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:08,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:41:08,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:08,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-09-25 07:41:08,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:08,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:08,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:08,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:08,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:08,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:08,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 07:41:08,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:08,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:08,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:08,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:41:08,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:08,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:41:08,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:08,450 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:08,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:08,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:08,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:08,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:08,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 07:41:08,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:08,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:08,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:08,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:41:08,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:08,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:41:08,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:08,456 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:08,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:08,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:08,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:08,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:08,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 07:41:08,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:08,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:08,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:08,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:41:08,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:08,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:41:08,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:08,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:08,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:08,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:08,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:08,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:08,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 07:41:08,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:08,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:08,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:08,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:41:08,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:08,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:41:08,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:08,471 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:08,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:08,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:08,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:08,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:08,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 07:41:08,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:08,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:08,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:08,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:41:08,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:08,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:41:08,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:08,484 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:08,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:08,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:08,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:08,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:08,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 07:41:08,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:08,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:08,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:08,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 07:41:08,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:08,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:41:08,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:08,493 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:08,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:08,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 07:41:08,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:08,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:08,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:41:08,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:08,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:08,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:08,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:41:08,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:08,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:41:08,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:08,500 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:08,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:08,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:08,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:08,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:08,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-25 07:41:08,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:08,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:08,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:08,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:41:08,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:08,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:41:08,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:08,507 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:08,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:08,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:41:08,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:08,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:08,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 07:41:08,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:08,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:08,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:08,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:41:08,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:08,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:41:08,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:08,514 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:08,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:08,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:41:08,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:08,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:08,546 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 07:41:08,546 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1062595151] [2020-09-25 07:41:08,547 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:41:08,547 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 07:41:08,547 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385554269] [2020-09-25 07:41:08,549 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 07:41:08,550 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:41:08,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 07:41:08,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:41:08,550 INFO L87 Difference]: Start difference. First operand 305 states and 335 transitions. Second operand 5 states. [2020-09-25 07:41:09,199 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:41:10,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:41:10,518 INFO L93 Difference]: Finished difference Result 497 states and 563 transitions. [2020-09-25 07:41:10,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 07:41:10,519 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 161 [2020-09-25 07:41:10,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:41:10,522 INFO L225 Difference]: With dead ends: 497 [2020-09-25 07:41:10,523 INFO L226 Difference]: Without dead ends: 343 [2020-09-25 07:41:10,524 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 07:41:10,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2020-09-25 07:41:10,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 295. [2020-09-25 07:41:10,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 295 states. [2020-09-25 07:41:10,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 322 transitions. [2020-09-25 07:41:10,576 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 322 transitions. Word has length 161 [2020-09-25 07:41:10,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:41:10,577 INFO L479 AbstractCegarLoop]: Abstraction has 295 states and 322 transitions. [2020-09-25 07:41:10,577 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 07:41:10,577 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 322 transitions. [2020-09-25 07:41:10,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-09-25 07:41:10,580 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:41:10,580 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:41:10,581 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 07:41:10,581 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:41:10,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:41:10,581 INFO L82 PathProgramCache]: Analyzing trace with hash 350266212, now seen corresponding path program 1 times [2020-09-25 07:41:10,582 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:41:10,582 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1914186173] [2020-09-25 07:41:10,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:41:10,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:10,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:11,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:11,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:13,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:15,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:15,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-09-25 07:41:15,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:41:15,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-09-25 07:41:15,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:15,642 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:15,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:41:15,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-25 07:41:15,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-09-25 07:41:15,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:15,980 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:41:15,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:41:16,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:16,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:16,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:16,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:41:16,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:16,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 220 [2020-09-25 07:41:16,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:16,233 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:16,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:41:16,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:16,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 07:41:16,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:16,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 07:41:16,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:16,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:16,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:16,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:41:16,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:16,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:41:16,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:16,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:16,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:41:16,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:16,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:41:16,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:16,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 07:41:16,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:16,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:16,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:16,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:41:16,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:16,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:41:16,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:16,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:16,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:41:16,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:16,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:41:16,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:16,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 07:41:16,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:16,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:16,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:16,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:41:16,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:16,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:41:16,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:16,338 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:16,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:41:16,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:16,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:41:16,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:41:16,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 07:41:16,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:16,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:16,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:16,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:41:16,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:16,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:41:16,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:16,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:16,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:41:16,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:16,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:41:16,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:41:16,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 07:41:16,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:16,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:16,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:16,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:41:16,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:16,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:41:16,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:16,365 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:16,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:41:16,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:16,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 07:41:16,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:16,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 07:41:16,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:16,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:16,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:16,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 07:41:16,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:16,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:41:16,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:16,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:16,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:41:16,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:16,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 07:41:16,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:16,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:41:16,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:16,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:16,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:16,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:41:16,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:16,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:41:16,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:16,389 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:16,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:16,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:16,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:16,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:16,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 07:41:16,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:16,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:16,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:16,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:41:16,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:16,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:41:16,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:16,398 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:16,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:16,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:41:16,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:16,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:16,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-25 07:41:16,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:16,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:16,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:16,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:41:16,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:16,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:41:16,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:16,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:16,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:16,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:41:16,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:16,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:16,468 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 07:41:16,468 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1914186173] [2020-09-25 07:41:16,469 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:41:16,469 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 07:41:16,469 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200482331] [2020-09-25 07:41:16,470 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 07:41:16,470 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:41:16,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 07:41:16,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:41:16,472 INFO L87 Difference]: Start difference. First operand 295 states and 322 transitions. Second operand 5 states. [2020-09-25 07:41:17,198 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 07:41:19,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:41:19,492 INFO L93 Difference]: Finished difference Result 713 states and 818 transitions. [2020-09-25 07:41:19,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 07:41:19,493 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 170 [2020-09-25 07:41:19,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:41:19,498 INFO L225 Difference]: With dead ends: 713 [2020-09-25 07:41:19,498 INFO L226 Difference]: Without dead ends: 533 [2020-09-25 07:41:19,500 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 07:41:19,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2020-09-25 07:41:19,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 469. [2020-09-25 07:41:19,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 469 states. [2020-09-25 07:41:19,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 524 transitions. [2020-09-25 07:41:19,579 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 524 transitions. Word has length 170 [2020-09-25 07:41:19,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:41:19,579 INFO L479 AbstractCegarLoop]: Abstraction has 469 states and 524 transitions. [2020-09-25 07:41:19,580 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 07:41:19,580 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 524 transitions. [2020-09-25 07:41:19,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-09-25 07:41:19,583 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:41:19,583 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:41:19,584 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 07:41:19,584 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:41:19,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:41:19,584 INFO L82 PathProgramCache]: Analyzing trace with hash 163203770, now seen corresponding path program 1 times [2020-09-25 07:41:19,584 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:41:19,585 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [674813420] [2020-09-25 07:41:19,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:41:19,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:19,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:19,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:20,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:22,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:24,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:24,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-09-25 07:41:24,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:41:24,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-09-25 07:41:24,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:24,647 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:24,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:41:24,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 157 [2020-09-25 07:41:24,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-25 07:41:24,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:41:25,095 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:41:25,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:41:25,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:25,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:25,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:25,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:41:25,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:25,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-09-25 07:41:25,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:25,276 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:25,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:25,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:25,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:25,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:41:25,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 07:41:25,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:25,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:25,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:25,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:41:25,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:25,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:41:25,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:25,329 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:25,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:25,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:25,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:25,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:41:25,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 07:41:25,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:25,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:25,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:25,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:41:25,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:25,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:41:25,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:25,339 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:25,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:25,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:25,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:25,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:41:25,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 07:41:25,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:25,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:25,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:25,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:41:25,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:25,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:41:25,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:25,350 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:25,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:25,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:25,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:25,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:41:25,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 07:41:25,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:25,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:25,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:25,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:41:25,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:25,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:41:25,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:25,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:25,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:25,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:25,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:25,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:41:25,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 07:41:25,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:25,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:25,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:25,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:41:25,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:25,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:41:25,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:25,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:25,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:25,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:25,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:25,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:41:25,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-25 07:41:25,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:25,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:25,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:25,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 07:41:25,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:25,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:41:25,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:25,424 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:25,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:41:25,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:25,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 07:41:25,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:41:25,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 07:41:25,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:25,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:25,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:25,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 07:41:25,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:25,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 07:41:25,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:25,450 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:25,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:41:25,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:25,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 07:41:25,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:41:25,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:41:25,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:25,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:25,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:25,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:41:25,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:25,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:41:25,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:25,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:25,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:25,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:25,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:25,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:25,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-09-25 07:41:25,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:25,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:25,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:25,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:41:25,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:25,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 07:41:25,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:25,480 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:25,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:41:25,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:25,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:41:25,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:41:25,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2020-09-25 07:41:25,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:25,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:25,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:25,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:41:25,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:25,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 07:41:25,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:25,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:25,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:41:25,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:25,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:41:25,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:41:25,654 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 07:41:25,656 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [674813420] [2020-09-25 07:41:25,656 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:41:25,657 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 07:41:25,657 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855112771] [2020-09-25 07:41:25,659 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 07:41:25,659 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:41:25,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 07:41:25,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 07:41:25,661 INFO L87 Difference]: Start difference. First operand 469 states and 524 transitions. Second operand 10 states. [2020-09-25 07:41:26,440 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 07:41:27,309 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:41:27,665 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 07:41:29,025 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:41:29,356 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 07:41:29,752 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 07:41:30,422 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:41:30,764 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-09-25 07:41:31,092 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 07:41:32,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:41:32,114 INFO L93 Difference]: Finished difference Result 1102 states and 1317 transitions. [2020-09-25 07:41:32,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 07:41:32,115 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 179 [2020-09-25 07:41:32,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:41:32,122 INFO L225 Difference]: With dead ends: 1102 [2020-09-25 07:41:32,122 INFO L226 Difference]: Without dead ends: 748 [2020-09-25 07:41:32,124 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-09-25 07:41:32,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2020-09-25 07:41:32,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 665. [2020-09-25 07:41:32,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 665 states. [2020-09-25 07:41:32,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 665 states and 752 transitions. [2020-09-25 07:41:32,221 INFO L78 Accepts]: Start accepts. Automaton has 665 states and 752 transitions. Word has length 179 [2020-09-25 07:41:32,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:41:32,222 INFO L479 AbstractCegarLoop]: Abstraction has 665 states and 752 transitions. [2020-09-25 07:41:32,222 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 07:41:32,222 INFO L276 IsEmpty]: Start isEmpty. Operand 665 states and 752 transitions. [2020-09-25 07:41:32,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2020-09-25 07:41:32,225 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:41:32,226 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:41:32,226 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 07:41:32,226 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:41:32,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:41:32,227 INFO L82 PathProgramCache]: Analyzing trace with hash 1477920914, now seen corresponding path program 1 times [2020-09-25 07:41:32,227 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:41:32,227 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1110620570] [2020-09-25 07:41:32,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:41:32,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:32,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:33,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:33,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 260 [2020-09-25 07:41:33,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:33,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 816 [2020-09-25 07:41:33,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:33,099 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:33,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:41:33,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 205 [2020-09-25 07:41:33,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 07:41:33,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:41:33,389 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:41:33,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:41:33,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:33,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:33,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:33,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:41:33,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:33,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-09-25 07:41:33,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:33,491 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:33,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:33,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:33,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:33,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:33,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 07:41:33,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:33,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:33,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:33,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:41:33,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:33,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:41:33,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:33,525 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:33,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:33,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:33,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:33,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:41:33,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 07:41:33,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:33,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:33,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:33,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:41:33,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:33,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:41:33,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:33,531 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:33,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:33,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:33,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:33,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:33,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 07:41:33,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:33,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:33,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:33,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:41:33,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:33,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:41:33,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:33,538 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:33,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:33,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:33,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:33,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:33,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 07:41:33,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:33,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:33,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:33,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:41:33,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:33,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:41:33,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:33,544 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:33,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:33,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:33,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:33,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:33,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 07:41:33,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:33,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:33,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:33,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:41:33,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:33,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:41:33,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:33,559 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:33,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:33,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:33,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:33,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:33,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 07:41:33,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:33,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:33,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:33,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 07:41:33,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:33,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:41:33,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:33,571 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:33,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:33,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:33,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:33,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:41:33,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:41:33,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:33,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:33,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:33,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:41:33,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:33,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:41:33,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:33,577 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:33,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:33,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:33,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:33,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:33,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 07:41:33,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:33,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:33,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:33,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-25 07:41:33,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:33,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-09-25 07:41:33,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:33,659 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:33,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:41:33,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-25 07:41:33,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 07:41:33,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:41:33,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:41:33,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:33,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:33,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:33,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 07:41:33,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:33,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-09-25 07:41:33,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:33,723 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:33,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:41:33,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 07:41:33,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 07:41:33,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:41:33,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:41:33,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:33,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:33,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:33,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 07:41:33,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:33,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-25 07:41:33,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:33,789 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:33,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:41:33,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 07:41:33,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 07:41:33,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:33,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:41:33,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:33,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:33,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:33,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 07:41:33,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:33,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-25 07:41:33,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:33,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:33,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:41:33,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:33,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 07:41:33,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:33,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:41:33,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:33,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:33,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:33,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:41:33,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:33,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:41:33,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:33,923 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:33,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:33,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:33,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:33,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:33,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 07:41:33,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:33,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:33,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:33,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:41:33,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:33,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:41:33,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:33,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:33,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:33,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 07:41:33,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:33,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:33,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2020-09-25 07:41:33,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:33,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:33,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:33,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:41:33,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:33,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:41:33,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:33,945 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:33,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:33,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:41:33,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:33,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:33,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-09-25 07:41:33,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:33,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:33,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:33,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:41:33,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:33,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:41:33,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:33,952 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:33,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:33,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:41:33,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:33,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:34,027 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 07:41:34,027 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1110620570] [2020-09-25 07:41:34,027 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:41:34,028 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 07:41:34,028 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449355678] [2020-09-25 07:41:34,028 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 07:41:34,029 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:41:34,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 07:41:34,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 07:41:34,030 INFO L87 Difference]: Start difference. First operand 665 states and 752 transitions. Second operand 10 states. [2020-09-25 07:41:35,667 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:41:35,971 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:41:36,307 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 07:41:36,644 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:41:36,959 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:41:37,280 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:41:38,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:41:38,532 INFO L93 Difference]: Finished difference Result 1327 states and 1563 transitions. [2020-09-25 07:41:38,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 07:41:38,533 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 213 [2020-09-25 07:41:38,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:41:38,538 INFO L225 Difference]: With dead ends: 1327 [2020-09-25 07:41:38,538 INFO L226 Difference]: Without dead ends: 777 [2020-09-25 07:41:38,540 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-09-25 07:41:38,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 777 states. [2020-09-25 07:41:38,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 777 to 684. [2020-09-25 07:41:38,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 684 states. [2020-09-25 07:41:38,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 684 states to 684 states and 772 transitions. [2020-09-25 07:41:38,615 INFO L78 Accepts]: Start accepts. Automaton has 684 states and 772 transitions. Word has length 213 [2020-09-25 07:41:38,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:41:38,616 INFO L479 AbstractCegarLoop]: Abstraction has 684 states and 772 transitions. [2020-09-25 07:41:38,616 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 07:41:38,616 INFO L276 IsEmpty]: Start isEmpty. Operand 684 states and 772 transitions. [2020-09-25 07:41:38,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2020-09-25 07:41:38,619 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:41:38,620 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:41:38,620 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 07:41:38,620 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:41:38,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:41:38,621 INFO L82 PathProgramCache]: Analyzing trace with hash 1415592178, now seen corresponding path program 1 times [2020-09-25 07:41:38,621 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:41:38,621 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2005992667] [2020-09-25 07:41:38,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:41:38,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:38,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:39,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:39,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 260 [2020-09-25 07:41:39,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:39,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 617 [2020-09-25 07:41:39,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:39,287 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:39,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:41:39,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 197 [2020-09-25 07:41:39,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:41:39,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:39,592 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:41:39,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:41:39,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:39,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:39,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:39,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:41:39,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:39,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-09-25 07:41:39,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:39,690 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:39,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:39,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:39,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:39,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:41:39,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 07:41:39,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:39,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:39,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:39,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:41:39,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:39,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:41:39,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:39,731 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:39,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:39,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:39,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:39,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:39,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 07:41:39,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:39,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:39,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:39,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:41:39,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:39,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:41:39,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:39,736 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:39,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:39,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:39,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:39,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:41:39,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 07:41:39,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:39,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:39,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:39,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:41:39,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:39,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:41:39,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:39,744 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:39,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:39,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:39,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:39,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:39,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 07:41:39,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:39,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:39,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:39,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:41:39,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:39,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:41:39,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:39,749 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:39,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:39,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:39,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:39,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:41:39,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 07:41:39,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:39,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:39,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:39,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:41:39,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:39,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:41:39,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:39,767 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:39,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:39,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:39,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:39,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:41:39,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 07:41:39,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:39,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:39,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:39,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 07:41:39,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:39,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:41:39,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:39,774 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:39,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:39,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:39,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:39,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:39,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:41:39,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:39,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:39,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:39,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:41:39,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:39,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:41:39,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:39,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:39,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:39,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:39,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:39,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:39,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 07:41:39,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:39,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:39,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:39,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-25 07:41:39,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:39,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-09-25 07:41:39,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:39,873 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:39,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:41:39,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-09-25 07:41:39,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:41:39,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:41:39,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:41:39,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:39,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:39,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:39,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 07:41:39,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:39,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-09-25 07:41:39,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:39,990 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:39,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:41:39,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 07:41:39,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:41:39,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:39,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:41:40,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:40,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:40,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:40,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 07:41:40,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:40,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-25 07:41:40,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:40,064 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:40,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:41:40,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 07:41:40,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:41:40,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:40,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:41:40,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:40,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:40,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:40,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 07:41:40,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:40,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-25 07:41:40,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:40,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:40,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:41:40,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 07:41:40,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:41:40,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:40,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:41:40,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:40,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking...